glass structures by using smokey bronze- tinted glass and a bronze metal finish on the exterior, providing for variations in texture and color. The proportions in this building have been described as impeccable. Inside, the building is designed for business, containing few permanent walls in order to allow for partitions to be placed as tenants' needs required. Designed primarily as offices for the Seagram Company, some of the space was nevertheless leased to other companies.3) Earth-rootedSome buildings look like they are growing out of the earth. This illusion, called earth-rooted, is the least common of the three, because it is difficult to accomplish, and difficult to easily define. It usually occurs when a building exhibits the following traits:it uses materials that blend with the siteit has cantilevers that seem to "branch out" from the buildingit has a seamless connection with the groundEarth-rooted structures look best on a hillside or hilltop, worst in a city on flat ground (where they look like weeds breaking through the concrete). The best example of an earth-rooted structure in the testbook is the Kaufman House by Frank Lloyd Wright.Reinforced concrete combined with the cantilever principle makes it possible for Wright to project the immense slabs of stone-like concrete out into space without columns for support. You can see that the house was designed specifically to fit this site harmoniously, so much so that the structure seems almost to grow out of the rocky hillside, allowing the stream of water to flow through it naturally. Some of the materials in the house, such as the stonework at the center, came directly from the site, reinforcing the organic connection.A much older example is a temple design from the "Golden Age" of Greece which has had a strong impact on Western buildings up to this day, particularly the public buildings which you have seen frequently--libraries, schools, churches, and office buildings. ...